Charts Flashcards
1
Q
Where are the rules for aeronautical charts documented?
A
ICAO Annex 4
ICAO document 8697
2
Q
What is the parallel of origin?
A
The point where the projection contacts the external surface of the earth
3
Q
To what percentage is the limit of distortions of meridians on charts ?
A
1%
4
Q
What’s the usable area in a direct Mercator projection?
A
500nm north/south of equator
Approx N/S10 degrees
5
Q
What’s the scale error of a lambert conical projection?
A
< 1%
6
Q
What’s the usable area of a lambert conical projection?
A
24, 12 degrees north and south of parallel of origin
7
Q
What’s the allowed scale error of a polar stereographic projection?
A
<1%
8
Q
What’s the usable area of a polar stereographic projection?
A
70-90 degrees latitude
9
Q
J
A
